Transport i lotnictwo · 13/10/1998

Boeing Model 747 Series Airplanes Equipped with Pratt & Whitney Model JT9D-70 Engines: New Airworthiness Directive

The Federal Aviation Administration (FAA) has issued an updated airworthiness directive (AD) for certain Boeing 747 aircraft equipped with Pratt & Whitney JT9D-70 engines, requiring repetitive inspections and replacement of cracked spring beams to prevent fatigue cracking and potential loss of an outboard strut.